Geforce GTX 680 vs Radeon HD 7950

Intro

Compare all that to the Radeon HD 7950, which features a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It is made up of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7950		7731 points
Geforce GTX 680		7650 points
	Difference: 81 (1%)

Ethereum Mining Hash Rate

Radeon HD 7950		21 Mh/s
Geforce GTX 680		16 Mh/s
	Difference: 5 (31%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680		195 Watts
Radeon HD 7950		200 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

The Radeon HD 7950 should in theory perform quite a bit faster than the Geforce GTX 680 overall. (explain)

Radeon HD 7950		240000 MB/sec
Geforce GTX 680		192256 MB/sec
	Difference: 47744 (25%)

Texel Rate

The Geforce GTX 680 should be much (more or less 44%) faster with regards to texture filtering than the Radeon HD 7950. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 39168 (44%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 680 is superior to the Radeon HD 7950, and very much so. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 6592 (26%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.